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Open AccessArticle

Study on the Transient Characteristics of the Centrifugal Pump during the Startup Period with Assisted Valve

by 1, 2, 1,*, 1, 3,* and 1,4
1
College of Energy Engineering, Zhejiang University, Hangzhou 310027, China
2
Xi’an Precision Machinery Research Institute Kunming Branch, Kunming 650032, China
3
Ocean College, Zhejiang University, Hangzhou 310027, China
4
The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, China
*
Authors to whom correspondence should be addressed.
Processes 2020, 8(10), 1241; https://doi.org/10.3390/pr8101241
Received: 19 August 2020 / Revised: 27 September 2020 / Accepted: 28 September 2020 / Published: 2 October 2020
The startup period, one of several transient operations in a centrifugal pump, takes note of some problems with these devices. Sometimes a transient high pressure and high flow rate over a very short period of time are required at the startup process. The pumps dynamic response is delayed because of the rotational inertia of the pump and motor. Our research focuses on how to get a large flow in a short time when the pump cannot meet the requirements alone without a large power driver. To achieve a strong response in the startup process, a ball valve is installed downstream of the pump. The pumps transient behavior during such transient operations is important and requires investigation. In this study, the external transient hydrodynamic performance and the internal flow of the pump during the transient startup period are studied by experiments and simulations. In order to find an appropriate matching method, different experiments were designed. The content and results of this paper are meaningful for performance prediction during the transient pump-valve startup period. View Full-Text
Keywords: transient characteristics; centrifugal pump; startup period; numerical simulation transient characteristics; centrifugal pump; startup period; numerical simulation
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MDPI and ACS Style

Li, Q.; Ma, X.; Wu, P.; Yang, S.; Huang, B.; Wu, D. Study on the Transient Characteristics of the Centrifugal Pump during the Startup Period with Assisted Valve. Processes 2020, 8, 1241.

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